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Class Information
Number: 250
Name: Radiant energy >
Description: This is the residual class for methods and apparatus involving radiant energy.










Class Number Class Name No. of Patents
250/328

Automatic/serial detection of similar sources

174
250/252.1

Calibration or standardization methods

1198
250/335

Cloud or bubble chambers

7
250/271

Coded record and readers; invisible radiant energy type

86
250/324

Corona irradiation

335
250/325

Charging of moving object

169
250/326

Charging of objects

147
250/251

Electrically neutral molecular or atomic beam devices and methods

617
250/305

Electron energy analysis

508
250/428

Fluent material containment, support or transfer means

148
250/431

With cleaning means

80
250/432R

With irradiating source or radiating fluent material

395
250/435

Including a flowthrough transfer means

336
250/436

Flow-enclosed radiation source

333
250/437

Tortuous path type

114
250/438

With a flow-modifying surface

130
250/434

Including a gravity-type transfer means

35
250/433

Including a movable surface transfer means

34
250/432PD

Parent-daughter isotope separators

85
250/429

With temperature control

42
250/430

With valve or pump actuator

46
250/910

Food sample analysis using invisible radiant energy source

89
250/253

Geological testing or irradiation

289
250/256

Well testing apparatus and methods

228
250/258

By interface of fluids

26
250/265

Plural detectors

104
250/266

With spacing or direction of detectors

156
250/257

With casing collar detection

8
250/261

With detector or detector circuit control

69
250/262

With particular detector signal circuit

147
250/264

Having plural detectors

82
250/263

With detector signal modulation or carrier wave

15
250/259

With placement of tracer in or about well

63
250/260

Tracer being or including radioactive material

88
250/267

With radiation control to detector

36
250/269.1

With source and detector

184
250/269.3

Having gamma source and gamma detector

120
250/269.6

Having neutron source and gamma detector

118
250/269.8

With detection in plural consecutive time intervals

65
250/269.7

With plural gamma detectors

82
250/269.4

Having neutron source and neutron detector

104
250/269.5

Having thermal neutron detector

62
250/269.2

With plural types of detectors

46
250/268

With well-engaging means

42
250/254

With drill or drilling

102
250/255

With sampling

208
250/330

Infrared-to-visible imaging

715
250/332

Including detector array

904
250/333

Including image tube-type detector

81
250/331

Including liquid crystal detector

49
250/334

Including means for scanning field of view

341
250/306

Inspection of solids or liquids by charged particles

2314
250/440.11

Analyte supports

329
250/441.11

With air lock or evacuation means

234
250/443.1

With heat transfer or temperature-indication means

156
250/442.11

With object moving or positioning means

687
250/311

Electron microscope type

1569
250/310

Electron probe type

2453
250/308

Including a radioactive source

183
250/307

Methods

2080
250/309

Positive ion probe or microscope type

678
250/336.1

Invisible radiant energy responsive electric signalling

662
250/356.1

Flow metering

59
250/356.2

Using radioactive tracer

30
250/357.1

Fluent material level signalling

79
250/374

Including a radiant energy responsive gas discharge device

379
250/375

Methods

57
250/385.1

Plural chambers or three or more electrodes

398
250/385.2

Spark chambers

13
250/386

With a periodic electrode bias varying means

28
250/376

With electroscopic indicators

33
250/377

With charge generator

17
250/378

With charge storage means

19
250/388

With indicator

53
250/382

With means to ionize the gas

96
250/383

Emissive fluent type, or with transmissive fluent material

14
250/384

Radioactive

57
250/379

With means to supply the gas

64
250/380

Radioactive gas, or with gas-borne radioactive material

54
250/381

With radioactive source

146
250/387

With periodic electrode bias supply

20
250/389

Including ionization means

91
250/338.1

Infrared responsive

1424
250/338.2

Ferroelectric, ferromagnetic, photomagnetic types

88
250/340

Methods

310
250/342

Locating infrared emissive objects

615
250/341.1

With irradiation or heating of object or material

499
250/341.6

Heating of object or material

196
250/341.3

Including polarizing means

64
250/341.2

Including probe

90
250/341.8

Measuring infrared radiation reflected from sample

491
250/341.5

With calibration

106
250/341.7

With multiple sources

95
250/341.4

With semiconductor sample

83
250/349

Plural signalling means

389
250/350

With periodic beam varying means

38
250/338.3

Pyroelectric type

413
250/338.4

Semiconducting type

581
250/353

With beam deflector or focussing means

469
250/338.5

With means to analyze uncontained fluent material

237
250/343

With means to transmission-test contained fluent material

943
250/345

Plural beam/detector pairs

205
250/346

Plural temperature sensitive signalling means

28
250/344

Plural series signalling means

58
250/347

With movable beam deflector or focussing means

238
250/348

Controlled by signalling means

25
250/351

With periodic beam varying means

170
250/339.01

With selection of plural discrete wavelengths or bands

240
250/339.14

Detecting infrared emissive objects

95
250/339.15

Sensing flame or explosion

132
250/339.02

Including detector array

257
250/339.03

Including temperature control means

99
250/339.04

Including temperature determining means

113
250/339.05

With additional noninfrared wavelengths

152
250/339.06

With radiation source

175
250/339.1

Determining moisture content

117
250/339.07

Including spectrometer or spectrophotometer

350
250/339.08

Including fourier transform infrared spectrometry

177
250/339.11

Measuring infrared radiation reflected from sample

415
250/339.12

Using sample absorption for chemical composition analysis

471
250/339.13

With gaseous sample

356
250/339.09

With calibration steps in measurement process

186
250/352

With temperature modifying means

404
250/395

Methods

161
250/390.01

Neutron responsive means

276
250/390.04

Composition analysis

124
250/390.05

For moisture content

42
250/390.06

Density/thickness/consistency analysis

36
250/390.11

Including a scintillator

117
250/390.1

Including beam control

42
250/391

Methods

74
250/390.12

Position-sensitive

23
250/390.02

Radiographic analysis

51
250/390.07

Spectrum analysis

48
250/390.09

Using diffractometers

18
250/390.08

Using time-of-flight spectrometers

11
250/390.03

With dose measurement

68
250/392

With indicating or recording means

74
250/394

Plural signalling means

171
250/370.01

Semiconductor system

596
250/370.02

Alpha particle detection system

70
250/370.06

Discrimination-type system

187
250/370.07

Dose or dose rate measurement

182
250/370.03

Fission fragment/fissionable isotope detection system

17
250/370.08

Imaging system

613
250/370.09

X-ray or gamma-ray system

1529
250/371

Methods

81
250/370.05

Neutron detection system

107
250/370.12

Of material other than germanium, diamond, or silicon

114
250/370.13

Containing cadmium telluride

216
250/370.14

Particular detection structure (e.g., mos, pin)

288
250/370.1

Position sensitive detection system

160
250/370.11

Scintillation system

899
250/370.04

Self-powered system

30
250/370.15

Temperature control or compensation system

179
250/354.1

Signalling means controls incident radiation

59
250/336.2

Superconducting type

102
250/372

Ultraviolet light responsive means

709
250/373

With means to transmission-test contained fluent material

232
250/337

With heating of luminophors

125
250/358.1

With means to inspect passive solid objects

465
250/359.1

Rectilinearly moving object

224
250/360.1

With relative movement means

116
250/361R

With or including a luminophor

527
250/361C

Chemiluminescent detection

112
250/362

Methods

247
250/366

Plural electric signalling means

363
250/367

Plural or composite luminophor

487
250/368

With optics

462
250/369

With output system

464
250/363.01

With radiant energy source

263
250/363.02

Body scanner or camera

452
250/363.04

Emission tomography

577
250/363.05

With detector support

152
250/363.06

Using coded aperture

66
250/363.1

With a collimator

291
250/363.09

With calibration

181
250/363.08

With detector support

119
250/363.07

With distortion correction

183
250/363.03

With positron source

418
250/365

Ultraviolet light source

182
250/364

With fluent source handling or collecting means

140
250/393

With radiant energy source

144
250/472.1

Invisible radiation responsive nonelectric signalling

154
250/483.1

Luminescent device

554
250/484.2

Requiring an additional energy source to cause luminescence

114
250/484.4

With optically-stimulated phosphor

577
250/484.5

Dosimeter

84
250/484.3

With thermally-stimulated phosphor

102
250/485.1

With light excluding casing having an aperture

33
250/487.1

With optical member of material to directly modify luminous energy

120
250/488.1

Plural planar layer type

35
250/486.1

With plural luminescent material or plural luminescent containing layers or areas

229
250/473.1

Methods

89
250/474.1

Optical change type

155
250/475.2

Photographic type

45
250/482.1

With radiation filter, modifier, or shield (e.g., dosimeter badges)

85
250/489

Ion collectors

32
250/423R

Ion generation

1396
250/426

Arc type

159
250/427

Electron bombardment type

310
250/423F

Field ionization type

303
250/424

Methods

468
250/423P

Photoionization type

359
250/425

With sample vaporizing means

215
250/281

Ionic separation or analysis

2497
250/290

Cyclically varying ion selecting field means

506
250/293

Alternating field ion selecting means

199
250/291

Circular ion path

281
250/292

Laterally resonant ion path

942
250/286

Ion beam pulsing means with detector synchronizing means

502
250/287

With time-of-flight indicator

1215
250/282

Methods

2614
250/283

With collection of ions

580
250/284

For material recovery

125
250/294

Static field-type ion path-bending selecting means

172
250/298

Magnetic field path-bending means

150
250/299

With detector

145
250/300

With detector control or regulating

59
250/296

Plural diverse-type static path-bending fields

132
250/297

For causing complex ion path

45
250/295

With variable beam shifting field means

37
250/289

With evacuation or sealing means

179
250/285

With plural, simultaneous ion generators

106
250/288

With sample supply means

2516
250/492.1

Irradiation of objects or material

2180
250/492.3

Ion or electron beam irradiation

2198
250/492.2

Irradiation of semiconductor devices

3034
250/492.21

Ion bombardment

1492
250/492.22

Pattern control

1095
250/492.24

Photocathode projection

55
250/492.23

Variable beam

408
250/458.1

Luminophor irradiation

1660
250/459.1

Methods

939
250/462.1

Self-luminous article

114
250/466.1

Covers, keys, or luminous attachments therefor

9
250/463.1

Dials, pointers, gauges, and bands

15
250/465.1

Manual operators or luminous attachments therefor

7
250/464.1

Pendants

2
250/467.1

Reticles, gun sights or with optical element

13
250/461.1

With ultraviolet source

755
250/461.2

Biological cell identification

430
250/491.1

Means to align or position an object relative to a source or detector

914
250/909

Methods and apparatus ancillary to stimulable phosphor systems

33
250/304

Methods including separation or nonradiant treatment of test materials

131
250/301

Methods of determining oil presence, contamination or concentration

124
250/526

Miscellaneous

55
250/900

Optical liquid level sensors

26
250/901

With gap between light guide elements (includes open light path preset)

22
250/902

With closed light path preset

15
250/903

With prism contacting liquid

32
250/904

With single light guide element to guide light in a continuous path

18
250/905

With longitudinal irregularity

3
250/906

With large scale longitudinal bend

4
250/907

With portions of light guide coating or cladding removed

3
250/908

With waveguide twisted about its longitudinal axis

1
250/DIG.1

Passive intrusion detectors

290
250/200

Photocells; circuits and apparatus

144
250/215

Combined with diverse-type device

130
250/554

Flame light source

149
250/239

Housings (in addition to cell casing)

1206
250/550

Interference pattern analysis (e.g., spatial filtering or holography)

139
250/216

Optical or pre-photocell system

1511
250/226

Color (e.g., filter or spectroscope)

1191
250/221

Controlled by article, person, or animal

1871
250/222.1

Inanimate article

509
250/224

Article and light ray relatively moved during sensing

115
250/223R

Conveyor or chute

532
250/223B

Bottles

434
250/222.2

Particle detection

189
250/573

Fluent material in optical path

613
250/575

Plural paths

160
250/576

Sample holder or supply

274
250/574

Scattered or reflected light

737
250/577

Volume or level

376
250/237R

Hoods, grating, baffles, diaphragms, masks

315
250/237G

Gratings (moire fringes)

1046
250/566

Including coded record

279
250/568

Digital information

146
250/569

Card type

50
250/570

Tape, drum, or disc types

97
250/228

Integrating sphere

184
250/227.11

Light conductor

979
250/227.14

Condition responsive light guide (e.g., light guide is physically affected by parameter sensed which results in light conveyed to the photocell)

747
250/227.18

Causing light spectral frequency/wavelength change

250
250/227.17

Causing polarization change in fiber

166
250/227.19

With coherent interferrometric light

230
250/227.16

With detection of fiber microbend caused by parameter affecting fiber

207
250/227.15

With detection of macroscopic break in fiber

118
250/227.32

End illuminated light conductor with noncircular geometric cross section

50
250/227.13

Light pen

40
250/227.12

Optical delay line

122
250/227.31

Side or edge illuminated light conductor or collector

102
250/227.27

With coherent interferrometric light

157
250/227.24

With coupling enhancement means

306
250/227.25

Fluid coupling

169
250/227.2

With imaging

137
250/227.21

With light chopping or modulation

351
250/227.22

Keyboard or other manual switch controlled

96
250/227.26

With scanning

114
250/227.28

With specific configuration of light conductor components with respect to each other

239
250/227.29

With specific illumination or viewing orientation of light conductor relative to viewed object (e.g., light normal to, and detector at 45 degree angle to, viewed object)

83
250/227.23

With spectral frequency/wavelength discrimination

360
250/227.3

With variable orientation of light conductor relative to viewed object (e.g., goniometer)

13
250/229

Light valve (e.g., iris diaphragm)

282
250/231.1

Actuated by dynamic external physical quantity

374
250/231.11

Actuated by gauge element deflection

40
250/231.12

Gyroscopes

34
250/231.19

Pressure-responsive light valves

200
250/231.13

Shaft angle transducers

888
250/231.14

Incremental shaft readers; i.e., with means to generate increments of angular shaft rotation

546
250/231.18

Position indicating shaft encoders with means to generate a unique signal for each specific angular shaft position

375
250/231.16

Using phase difference of output signals from plural photodetectors

408
250/231.17

With means to indicate a complete shaft rotation

128
250/231.15

With plural gear driven discs

59
250/232

Light chopper type

22
250/233

Rotary

117
250/230

Reflection type(e.g., mirror galvanometer)

77
250/234

Means for moving optical system

1045
250/235

Repetitious path

480
250/236

Rotary motion

458
250/578.1

Plural light sources or optical paths

147
250/225

Polarizing

584
250/206

Photocell controlled circuit

185
250/210

Bridge and push-pull circuits

35
250/207

Electron multiplier

326
250/206.1

Having means to generate positional information in at least one plane of a target moving relative to one or more photodetectors

290
250/206.2

Detection of positional information in two or more planes (e.g., azimuth and elevation; hour angle and declination)

161
250/206.3

With moving reticle in optical path

13
250/555

Including coded record

63
250/556

Document verification or graph reader

233
250/557

With means to position, direct, or detect record

168
250/208.1

Plural photosensitive image detecting element arrays

4478
250/208.2

Plural photosensitive nonimage detecting elements

374
250/208.4

Used to switch an electrical circuit or device on or off

92
250/208.3

With electronic scanning

78
250/208.5

With photodetector output ratioing other than by bridge or push-pull circuits

26
250/208.6

With specific relative positional geometry of photosensitive elements (e.g., an annular photosensitive element surrounding a coaxially mounted photosensitive element)

111
250/214R

Special photocell or electron tube circuits

1502
250/214B

Ambient light desensitizing means

186
250/214AL

Ambient light responsive

316
250/214A

Amplifier type

788
250/214LA

Light amplifier type

180
250/214LS

Switching type

186
250/214VT

Vacuum tube type

718
250/214AG

Automatic gain control

265
250/214C

Compensation

266
250/214DC

Digital circuitry

92
250/214SW

Electronic switch

110
250/214D

Light dimmers

23
250/214L

Logarithmic/linear signal

54
250/214P

Photographic control

78
250/214PR

Photosensitive rheostat type

81
250/214RC

Rate of change

43
250/214SG

Self-generating type

41
250/214SF

Slave flash

9
250/214.1

Special photocell

1230
250/558

Stereoplotters

38
250/564

With circuit for evaluating a fluent material

72
250/565

With comparison

74
250/201.1

Photocell controls its own optical systems

306
250/204

Adjusting optical system to balance brightness in plural paths

323
250/201.2

Automatic focus control

513
250/201.4

Active autofocus

342
250/201.5

With optical storage medium; e.g., optical disc, etc.

596
250/201.7

Based on contrast

189
250/201.8

Based on image shift

273
250/201.6

Based on triangulation

124
250/201.3

Of a microscope

403
250/549

Cathode-ray tube

14
250/205

Controlling light source intensity

1209
250/548

Controlling web, strand, strip, or sheet

857
250/202

Following a pattern (e.g., line or edge)

260
250/203.1

Following a target (e.g., a star or instrument pointer or other object) other than a pattern

241
250/203.3

Self-luminous target

90
250/203.6

Airborne target, or spaceborne target other than the sun (e.g., star or missile)

127
250/203.5

Cathode-ray tube scanning

32
250/203.4

Sun

361
250/203.7

With moving reticle in optical path

14
250/203.2

Target illuminated by artificial light source

124
250/201.9

Light beam wavefront phase adaptation

318
250/551

Signal isolator

732
250/552

Solid state light source

130
250/553

Array or matrix

88
250/238

Temperature control of photocell

139
250/559.01

With circuit for evaluating a web, strand, strip, or sheet

176
250/559.12

Beam interruption or shadow

116
250/559.13

With laser source

35
250/559.15

With plural detectors

51
250/559.14

With rotation of material

28
250/559.11

Detection of both reflected and transmitted light

71
250/559.16

Detection of diffuse light

120
250/559.17

With diffusion optics

30
250/559.18

With discrimination of discrete light diffusing region

37
250/559.04

Evaluation by regions, zones, or pixels

86
250/559.05

With imaging

96
250/559.06

With scanning

112
250/559.02

Evaluation of photographic film

104
250/559.19

Measuring dimensions

160
250/559.26

Longitudinal measurement (e.g., length or spacing)

96
250/559.22

Profile

316
250/559.23

With triangulation

105
250/559.27

Thickness

225
250/559.28

With translucent material

72
250/559.24

Transversal measurement (e.g., width, diameter, cross-sectional area)

256
250/559.25

Lumber

45
250/559.21

Volume

39
250/559.2

With comparison to reference or standard

76
250/559.29

Measuring position

549
250/559.37

Angular orientation (e.g., skew)

113
250/559.35

Centroid

14
250/559.38

Determining range from detector

215
250/559.36

Edge

259
250/559.34

Lead or wire bond inspection

87
250/559.32

Measuring rate of motion or flow (change of position)

51
250/559.3

With alignment detection

329
250/559.33

With robotics

142
250/559.31

With triangulation

107
250/559.03

Sequential detector arrangement

24
250/559.1

With calibration

101
250/559.39

With comparison to reference or standard

196
250/559.07

With imaging

116
250/559.08

With camera

140
250/559.4

With indication of presence of material or feature

689
250/559.43

Break detection

52
250/559.42

Discontinuity detection (e.g., hole, crack)

152
250/559.44

Identifying marking, pattern, or indicia

188
250/559.45

With defect discrimination circuitry

366
250/559.46

With camera or plural detectors

198
250/559.47

With counting means

38
250/559.48

With transversal scan

83
250/559.49

With moving reflector

79
250/559.41

With foreign particle discrimination circuitry

133
250/559.09

With polarization

59
250/493.1

Radiant energy generation and sources

896
250/494.1

Plural radiation sources

253
250/495.1

Including an infrared source

233
250/496.1

With container for radioactive source and radiation directing or selectable shielding

112
250/497.1

With means to move source between shielded and unshielded position

88
250/498.1

With pivoted or rotatable radiation shield

55
250/503.1

With radiation modifying member

214
250/504R

Ultraviolet or infrared source

1502
250/504H

Hand-held

128
250/505.1

Radiation controlling means

811
250/506.1

Shielded receptacles for radioactive sources

570
250/507.1

Having plural storage compartments or plural nested receptacles

283
250/515.1

Shields

562
250/517.1

Construction elements or building parts

139
250/519.1

Flexible

158
250/516.1

Garments

121
250/518.1

With neutron absorption material

127
250/302

Radiation tracer methods

215
250/303

Radioactive tracer methods

181
250/250

Radio and microwave absorption wavemeters

45
250/DIG.2

Radon detection

117
250/329

Record projectors

5
250/522.1

Source supports

47
250/315.3

Source with charged plate-type detector

35
250/580

Source with recording detector

219
250/591

Including a light beam read-out

131
250/581

Using a stimulable phosphor

248
250/589

With conveyance

184
250/590

With a recirculation path

61
250/588

With erasure

114
250/584

With image read-out

353
250/586

Including emission detection

246
250/587

With adjustment of conditions

170
250/585

Including stimulation

220
250/582

With image recording

150
250/583

For specialized application

122
250/453.11

Supported for nonsignalling objects of irradiation (e.g., with conveyor means)

216
250/454.11

With source support

114
250/455.11

Source and object encasement (e.g., sterilizers)

587
250/396R

With charged particle beam deflection or focussing

1770
250/396ML

Magnetic lens

805
250/397

With detector

1200
250/398

With target means

1124
250/399

Secondary emissive type

110
250/400

With means to convey or guide the target

118
250/316.1

With infrared or thermal pattern recording

115
250/317.1

Thermal copying of documents

77
250/319

With conveying means

58
250/318

With image transfer device

70
 
 
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